pub struct TextureAtlasLayout {
    pub size: Vec2,
    pub textures: Vec<Rect>,
    /* private fields */
}
Expand description

Stores a map used to lookup the position of a texture in a TextureAtlas. This can be used to either use and look up a specific section of a texture, or animate frame-by-frame as a sprite sheet.

Optionally it can store a mapping from sub texture handles to the related area index (see TextureAtlasBuilder).

Example usage animating sprite. Example usage loading sprite sheet.

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§size: Vec2§textures: Vec<Rect>

The specific areas of the atlas where each texture can be found

Implementations§

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impl TextureAtlasLayout

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pub fn new_empty(dimensions: Vec2) -> Self

Create a new empty layout with custom dimensions

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pub fn from_grid( tile_size: Vec2, columns: usize, rows: usize, padding: Option<Vec2>, offset: Option<Vec2> ) -> Self

Generate a TextureAtlasLayout as a grid where each tile_size by tile_size grid-cell is one of the section in the atlas. Grid cells are separated by some padding, and the grid starts at offset pixels from the top left corner. Resulting layout is indexed left to right, top to bottom.

Arguments
  • tile_size - Each layout grid cell size
  • columns - Grid column count
  • rows - Grid row count
  • padding - Optional padding between cells
  • offset - Optional global grid offset
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pub fn add_texture(&mut self, rect: Rect) -> usize

Add a section to the list in the layout and returns its index which can be used with TextureAtlas

Arguments
  • rect - The section of the texture to be added
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pub fn len(&self) -> usize

The number of textures in the TextureAtlasLayout

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pub fn is_empty(&self) -> bool

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pub fn get_texture_index( &self, texture: impl Into<AssetId<Image>> ) -> Option<usize>

Retrieves the texture section index of the given texture handle.

This requires the layout to have been built using a TextureAtlasBuilder

Trait Implementations§

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impl Clone for TextureAtlasLayout

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fn clone(&self) -> TextureAtlasLayout

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for TextureAtlasLayout

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl FromReflect for TextureAtlasLayout

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fn from_reflect(reflect: &dyn Reflect) -> Option<Self>

Constructs a concrete instance of Self from a reflected value.
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fn take_from_reflect( reflect: Box<dyn Reflect> ) -> Result<Self, Box<dyn Reflect>>

Attempts to downcast the given value to Self using, constructing the value using from_reflect if that fails. Read more
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impl GetTypeRegistration for TextureAtlasLayout

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impl Reflect for TextureAtlasLayout

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fn get_represented_type_info(&self) -> Option<&'static TypeInfo>

Returns the TypeInfo of the type represented by this value. Read more
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fn into_any(self: Box<Self>) -> Box<dyn Any>

Returns the value as a Box<dyn Any>.
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fn as_any(&self) -> &dyn Any

Returns the value as a &dyn Any.
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fn as_any_mut(&mut self) -> &mut dyn Any

Returns the value as a &mut dyn Any.
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fn into_reflect(self: Box<Self>) -> Box<dyn Reflect>

Casts this type to a boxed reflected value.
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fn as_reflect(&self) -> &dyn Reflect

Casts this type to a reflected value.
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fn as_reflect_mut(&mut self) -> &mut dyn Reflect

Casts this type to a mutable reflected value.
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fn clone_value(&self) -> Box<dyn Reflect>

Clones the value as a Reflect trait object. Read more
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fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>

Performs a type-checked assignment of a reflected value to this value. Read more
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fn apply(&mut self, value: &dyn Reflect)

Applies a reflected value to this value. Read more
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fn reflect_kind(&self) -> ReflectKind

Returns a zero-sized enumeration of “kinds” of type. Read more
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fn reflect_ref(&self) -> ReflectRef<'_>

Returns an immutable enumeration of “kinds” of type. Read more
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fn reflect_mut(&mut self) -> ReflectMut<'_>

Returns a mutable enumeration of “kinds” of type. Read more
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fn reflect_owned(self: Box<Self>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type. Read more
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fn reflect_partial_eq(&self, value: &dyn Reflect) -> Option<bool>

Returns a “partial equality” comparison result. Read more
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fn debug(&self, f: &mut Formatter<'_>) -> Result

Debug formatter for the value. Read more
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fn reflect_hash(&self) -> Option<u64>

Returns a hash of the value (which includes the type). Read more
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fn serializable(&self) -> Option<Serializable<'_>>

Returns a serializable version of the value. Read more
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fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type. Read more
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impl Struct for TextureAtlasLayout

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fn field(&self, name: &str) -> Option<&dyn Reflect>

Returns a reference to the value of the field named name as a &dyn Reflect.
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fn field_mut(&mut self, name: &str) -> Option<&mut dyn Reflect>

Returns a mutable reference to the value of the field named name as a &mut dyn Reflect.
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fn field_at(&self, index: usize) -> Option<&dyn Reflect>

Returns a reference to the value of the field with index index as a &dyn Reflect.
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fn field_at_mut(&mut self, index: usize) -> Option<&mut dyn Reflect>

Returns a mutable reference to the value of the field with index index as a &mut dyn Reflect.
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fn name_at(&self, index: usize) -> Option<&str>

Returns the name of the field with index index.
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fn field_len(&self) -> usize

Returns the number of fields in the struct.
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fn iter_fields(&self) -> FieldIter<'_>

Returns an iterator over the values of the reflectable fields for this struct.
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fn clone_dynamic(&self) -> DynamicStruct

Clones the struct into a DynamicStruct.
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impl TypePath for TextureAtlasLayout
where Self: Any + Send + Sync,

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fn type_path() -> &'static str

Returns the fully qualified path of the underlying type. Read more
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fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type. Read more
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fn type_ident() -> Option<&'static str>

Returns the name of the type, or None if it is anonymous. Read more
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fn crate_name() -> Option<&'static str>

Returns the name of the crate the type is in, or None if it is anonymous. Read more
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fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous. Read more
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impl Typed for TextureAtlasLayout

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fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.
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impl VisitAssetDependencies for TextureAtlasLayout

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fn visit_dependencies(&self, visit: &mut impl FnMut(UntypedAssetId))

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impl Asset for TextureAtlasLayout

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impl<T> Any for T
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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T, U> AsBindGroupShaderType<U> for T
where U: ShaderType, &'a T: for<'a> Into<U>,

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fn as_bind_group_shader_type(&self, _images: &RenderAssets<Image>) -> U

Return the T ShaderType for self. When used in AsBindGroup derives, it is safe to assume that all images in self exist.
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impl<A> AssetContainer for A
where A: Asset,

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fn insert(self: Box<A>, id: UntypedAssetId, world: &mut World)

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fn asset_type_name(&self) -> &'static str

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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fn downcast(&self) -> &T

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impl<T> Downcast for T
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Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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